Nitroolefin
硝基烯烃
🗣️ 情景例句
In the Spring and Autumn period, copper and iron chopsticks came into being.
在春秋时代又出现了铜制和铁制的筷子。
I was surprised to see you here.
我想不到在这里碰到了你。
He's over there. He's cleaning the car.
他在那边，在洗车。